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Finding the Fourth Proportional to 499,603.91, 749,453.27 and 139,774.86

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Solution

The fourth proportional to 499,603.91, 749,453.27 and 139,774.86 is: 209,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,603.91 : 749,453.27 = 139,774.86 : x
  2. Step 2: Convert to fraction form
    499,603.91/749,453.27 = 139,774.86/x
  3. Step 3: Cross multiply
    499,603.91x = 749,453.27 × 139,774.86
  4. Step 4: Simplify right side
    499,603.91x = 104,754,725,191.92
  5. Step 5: Solve for x
    x = 104,754,725,191.92/499,603.91
  6. Step 6: Final answer
    x = 209,675.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.